Marvel Legends Series Inserts

Flip Card Flip Card Invisible Woman{2}{W}Legendary Creature — Human HeroAt the beginning of combat on your turn, if you've cast a noncreature spell this turn, create a 0/3 colorless Wall creature token with defender and reach.
Whenever you attack, you may pay {R}{G}{W}{U}. When you do, target creature gets +1/+0 until end of turn for each creature you control and can't be blocked this turn. 3/3 Captain America, Team Leader{R}{W}{U}Legendary Creature — Human Soldier HeroWhenever another Hero you control enters, it gains vigilance and haste until end of turn. Put a +1/+1 counter on that Hero and a +1/+1 counter on Captain America. 3/3 Doctor Doom, King of Latveria{1}{U}{B}{R}Legendary Creature — Human Noble VillainWhenever you discard one or more land cards, each opponent loses 2 life.
At the beginning of combat on your turn, target Villain you control gains menace until end of turn. It connives. (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on that creature.) 3/3 T'Challa, the Black Panther{1}{G}{W}Legendary Creature — Human Noble HeroWhenever T'Challa enters or attacks, create a tapped Vibranium token. (It's an artifact with indestructible and "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.")
Whenever you cast an artifact spell with mana value 4 or greater, put two +1/+1 counters on T'Challa. 2/2